The world's fastest growing cities

We reveal which of the world's cities are racing ahead in terms of
urbanisation and will be the most densely populated by the year 2020.

10. Chittagong, Bangladesh

Chittagong - Bangladesh's main seaport and its second biggest city - is the
tenth fastest growing city in the world. It is now home to the country's
most important businesses, has an eco-park that attracts scientists and a
number of large factories.